Longoar Bay is a remote beach on the eastern side of Great Castle Head. It consists of sand, rocks and rockpools bordered by cliffs of mudstone and sandstone. A bridleway (track) leads northwards from Great Castle Head across fields to meet the Sandy Haven - St Ishmaels road at Grid Ref: SM846072 (Lat : 51.7221°N, Lon : 5.1196°W), which has plenty of space for roadside parking. Alternative parking is at St Ishmaels (see Lindsway Bay).
Access to the beach is tricky. The only route down is a steep, slightly overgrown path roughly at the centre of the bay, which is easily missed. You need to look for a narrow gap in the blackthorn bushes, from where the path leads down onto the rocks at the back of the beach.
It's worth checking the wind direction before coming here as an easterly wind will bring the aroma of the oil refineries wafting this way. The photos were taken an hour before low tide.